What is a Junction Box?

Blue junction box

What is a Junction Box

A junction box is an enclosure that protects a connection of two or more wires carrying electrical current. The use of junctions removes the need to run a wire from every outlet or switch back to the main service panel. This level of protection is needed to prevent fires and to maintain reliable connections. 

What is a Junction Box Used For

When a junction box is used for every electrical connection in a building it is much easier to locate and repair any electrical problems that come up. When some connections are made without junction boxes, such as inside wall cavities or in the hidden ceiling or attic locations, the likelihood of future problems increases. Every electrical connection should be inside a protective box that is easy to find and access. Blue junction box

Should I Get a Plastic or Metal Junction Box?

An electrical junction box can be made of either metal or plastic and they are called by a variety of names.  This is because they come in various shapes and sizes that are used for different purposes.  Boxes like the one above can simply be used to protect the connection of multiple wires and have a flat plate covering it. Electrical boxes like the one on the right are also used for outlets or for wall switches.

Other boxes are used for hanging ceiling fixtures and other uses.  Some boxes are made specifically for new construction, and others are made for retrofit work.   There are many types of electrical junction boxes available, and you can see many of them at any home supply store.

Can you DIY Junction Box Installation

Whether you want a new outlet added to your kitchen, a ceiling fan installed where there is none currently, or a new dedicated circuit added to your garage, a junction box of some kind will be needed.  Although there are some handy homeowners who are competent to do this work themselves, for most people we recommend having a licensed electrician do that type of work for you.  It can be dangerous at the time you are adding it, and it can be dangerous later if it causes an electrical fire.

Just give us a call and then you won’t have to worry.   After more than 50 years of service, Frye Electric is a respected name with a respected reputation.   We’d be glad to help you with any electrical service – residential or commercial.    Please contact us today!

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